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FHWA Home / Safety / Roadway Departure / Low-Cost Treatments for Horizontal Curve Safety 2016

Low-Cost Treatments for Horizontal Curve Safety 2016

Appendix G: Every Day Counts – High Friction Surface Treatments

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The Federal Highway Administration's Every Day Counts (EDC) initiative is designed to identify and deploy innovations aimed at shortening project delivery, enhancing the safety of our roadways, and improving environmental sustainability.

To ensure that the benefits of using HFST are attained quickly by a high percentage of the United States market, the EDC initiative has established an aggressive program to rapidly accelerate HFST deployment and adoption. As part of the subsequent EDC2 initiative, an implementation plan was created to serve as a roadmap for rapid, successful implementation of HFST, including technical guidance and assistance, benchmarking, marketing and communications, training, and project demonstrations that will highlight best practices. These treatments generated widespread interest during EDC2, and by the end of the two-year cycle, the number of States using HFSTs had grown from 14 to 39. As of the end of October 2015 that number has reached 42 states (including Puerto Rico, the U.S. Virgin Islands, and Federal Land) and 14 States have made the use of HFSTs a standard practice for reducing crashes at critical locations.

FHWA selected calcined bauxite as the aggregate of choice for HFSTs as it is high-quality, durable, resistant to polishing, and provides long lasting value as compared to other natively available aggregates. A recent study by National Center of Asphalt Technology to examine pavement surface friction performance of bauxite and seven alternative aggregate sources ranked calcined bauxite as the top performing aggregate.

Visit the EDC 2 HFST web site for more information about the EDC2 HFST program and resources.


Key activities delivered during the EDC 2 cycle: http://safety.fhwa.dot.gov/roadway_dept/pavement_friction/high_friction/

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Page last modified on December 18, 2017
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